S-r
abbr. learning stimulus-response learning 学习刺激—响应学习; send-receive 发射-接收
🗣️ 情景例句
He has no command over himself.
他不能克制自己。
The trees emit a fragrance of their own.
各种树木会发散各自独有的气味。
Of course, if you wish.
当然可以，如果你愿意。